HTML - Form Validation

form validation.

• required
• min
• max
• minLength
• maxLength
• pattern
• validate

HTML validation has its limitations.

• it only works in the browser (not React Native, …)
• it's hard/impossible to show custom error messages to our user.

• form.checkValidity() - Returns true if the form's controls are all valid; otherwise, returns false.
• form.reportValidity() - Returns true if the form's controls are all valid; otherwise, returns false and informs the user.

• https://developer.mozilla.org/en-US/docs/Learn/HTML/Forms/Form_validation